Ethernet streaming and occasional white noise on Windows

[AlexS]

Thanks to those who replied! As well as to those who did not, as this would complicate the matters even more
It would probably take a super computer, to figure out any correlation here. Perhaps, it means there is none. (I wonder if this super computer would also suffer from the white noise issue, when coupled with AIR...)
I'll ask you all one more question, if you're not tired of them yet. Could you post if:
a) You have a "double" network, and are NOT getting the issue
or
b) You have a "single" network, and ARE getting the issue.
By a single network, I mean reusing the same network for both music streaming and other needs (like Internet browsing)
By a double network, I mean using a dedicated network for streaming, and another one for Internet connections (that's my setup). I guess using a direct connection would fall under this category as well.
Trying to see if there is possibly any correlation between a double network and the issue.